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[iuuuuan <ivan_janes@xxxxxxxx>]

I have switch to vesa driver instead of intel driver and this is enough
for me. The intel graphics card on Dell GX260 in not very good at 3D
acceleration anyway. I have noticed that lsipci shows that my graphics
card has 128 MB of RAM which is not true - It has only 8 MB RAM (Region
0).

00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
 Subsystem: Dell Device 0126
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at e8000000 (32-bit, prefetchable) [size=128M]
 Region 1: Memory at ff680000 (32-bit, non-prefetchable) [size=512K]
 Capabilities: [d0] Power Management version 1
  Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-
 Kernel driver in use: i915
 Kernel modules: i915

I have changed the option Driver in Section Device from intel to vesa,
added VideoRam 7680 and disabled all the modules in Section Module . The
formula for determing VideoRam is (Video Memory)*1024 - (Region 1 size
from lspci).

My xorg.conf  looks like this :

Section "Device"
        Identifier      "Configured Video Device"
        Boardname       "Intel 845"
        Busid           "PCI:0:2:0"
        Driver          "vesa"
        Screen  0
        Vendorname      "Intel"
#        Option "AccelMethod" "uxa"
        VideoRam        7680 
EndSection

Section "Monitor"
        Identifier      "Configured Monitor"
        Vendorname      "Samsung"
        Modelname       "Samsung SyncMaster 171S/175S/170S/CX175S-AZ/LX175S"
        Horizsync       30-81
        Vertrefresh     56-85
  modeline  "1280x1024@75" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
        Gamma   1.0
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "Configured Video Device"
        Monitor         "Configured Monitor"
        Defaultdepth    24
        SubSection "Display"
                Depth   24
                Virtual 1280    1024
                Modes           "1280x1024@75"  
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
  screen 0 "Default Screen" 0 0
EndSection
Section "Module"
#       Load            "glx"
#       Load            "GLcore"
#       Load            "dri"
#       Load            "v4l"
EndSection
Section "ServerFlags"
EndSection

-- 
[i945G] karmic: INFO: task i915/* blocked for more than 120 seconds.
https://bugs.launchpad.net/bugs/451518
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